diff --git a/lib/node_modules/@stdlib/number/uint32/base/mul/test/fixtures/c/runner.c b/lib/node_modules/@stdlib/number/uint32/base/mul/test/fixtures/c/runner.c
index 5db586da8d00..8399c0ddb8b8 100644
--- a/lib/node_modules/@stdlib/number/uint32/base/mul/test/fixtures/c/runner.c
+++ b/lib/node_modules/@stdlib/number/uint32/base/mul/test/fixtures/c/runner.c
@@ -140,7 +140,7 @@ void rand_array_ui32( unsigned int *out, const unsigned int len, const unsigned
 * @param x    input array
 * @param len  array length
 */
-void ui32_to_f64( double *out, unsigned int *x, unsigned int len ) {
+void ui32_to_f64( double *out, const unsigned int *x, const unsigned int len ) {
 	unsigned int i;
 
 	for ( i = 0; i < len; i++ ) {
@@ -155,7 +155,7 @@ void ui32_to_f64( double *out, unsigned int *x, unsigned int len ) {
 * @param x    input array
 * @param len  array length
 */
-void f64_to_ui32( unsigned int *out, double *x, unsigned int len ) {
+void f64_to_ui32( unsigned int *out, const double *x, const unsigned int len ) {
 	unsigned int i;
 
 	for ( i = 0; i < len; i++ ) {
@@ -259,7 +259,7 @@ void write_data_as_json( FILE *f, const unsigned int *a, const unsigned int *b,
 * @param len   number of values in the domain
 * @param name  output filename
 */
-void generate( unsigned int *a, unsigned int *b, const unsigned int len, const char *name ) {
+void generate( const unsigned int *a, const unsigned int *b, const unsigned int len, const char *name ) {
 	unsigned int i;
 	unsigned int *y;
 	FILE *f;